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Genetics
Test Description: Basic terminology Review
Instructions: Answer all questions to get your test result.
1) Different forms of a trait (blue eyes, brown eyes, etc) are called:
A
homozygotes
B
variables
C
genotypes
D
alleles
2) The combination of letter symbols used to represent your genes for a trait (ex. AA) is your:
A
pedigree
B
phenotype
C
genotype
D
punnett square
3) The physical appearance of an individual is their:
A
allele
B
phenotype
C
pedigree
D
genotype
4) If you have the combination Aa for a trait, then you are _____ for that trait.
A
allelic
B
homozygous
C
heterozygous
D
phenotypic
5) How would we genetically represent a male individual who possesses a sex-linked trait?
A
XX
B
XY*
C
X*Y
D
X*X
6) In a pedigree _______ represent males, and _______ represent females.
A
squares, triangles
B
triangles, circles
C
circles, squares
D
squares, circles
7) A family tree diagram that is used to track traits through several generations is known as a:
A
genotype
B
punnett square
C
phenotype
D
pedigree
8) When a cell receives too many or too few chromosomes during meiosis, ____ has occurred.
A
nondisjunction
B
phenylketoneuria
C
mitosis
D
erythroblastosis fetalis
9) Sex-linked traits are:
A
found only in females.
B
always fatal.
C
most commonly seen in males.
D
always carried by males, but not shown.
10) The sex of an offspring is determined by:
A
the father
B
the day of the week
C
the mother
D
both parents
*select an answer for all questions
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